000 FKNT24 KNHC 271450 TCANT4 TROPICAL STORM ISAAC ICAO ADVISORY NUMBER 26 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012 1500 UTC MON AUG 27 2012 TC ADVISORY DTG: 20120827/1500Z TCAC: KNHC TC: ISAAC NR: 026 PSN: N2606 W08518 MOV: NW 12KT C: 0988HPA MAX WIND: 055KT FCST PSN + 06 HR: 272100 N2646 W08618 FCST MAX WIND + 06 HR: 060KT FCST PSN + 12 HR: 280300 N2724 W08712 FCST MAX WIND + 12 HR: 065KT FCST PSN + 18 HR: 280900 N2800 W08800 FCST MAX WIND + 18 HR: 070KT FCST PSN + 24 HR: 281500 N2833 W08842 FCST MAX WIND + 24 HR: 075KT RMK THE FORECAST POSITION INFORMATION IN THIS PRODUCT IS INTERPOLATED FROM OFFICIAL FORECAST DATA VALID AT 0000... 0600...1200...AND 1800Z. NXT MSG: 20120827/2100Z ..